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Securities & Allowance for Securities Credit Losses - Schedule of Amortized Cost of HTM Debt Securities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Roll Forward]
Beginning period	$ 144	$ 248	$ 202	$ 348
Provision for (recapture of) credit losses	(11)	13	(69)	(87)
Write offs charged against the allowance	0	0	0	0
Recoveries of amounts previously written off	0	0	0	0
Ending period	133	261	133	261
U.S. government and federal agencies
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Roll Forward]
Beginning period	0	0	0	0
Provision for (recapture of) credit losses	0	0	0	0
Write offs charged against the allowance	0	0	0	0
Recoveries of amounts previously written off	0	0	0	0
Ending period	0	0	0	0
Mortgage Backed Securities
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Roll Forward]
Beginning period	0	0	0	0
Provision for (recapture of) credit losses	0	0	0	0
Write offs charged against the allowance	0	0	0	0
Recoveries of amounts previously written off	0	0	0	0
Ending period	0	0	0	0
Corporate bonds
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Roll Forward]
Beginning period	114	215	171	322
Provision for (recapture of) credit losses	(10)	15	(67)	(92)
Write offs charged against the allowance	0	0	0	0
Recoveries of amounts previously written off	0	0	0	0
Ending period	104	230	104	230
State and municipal securities
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Roll Forward]
Beginning period	30	33	31	26
Provision for (recapture of) credit losses	(1)	(2)	(2)	5
Write offs charged against the allowance	0	0	0	0
Recoveries of amounts previously written off	0	0	0	0
Ending period	$ 29	$ 31	$ 29	$ 31

X

- Definition

Amount, excluding accrued interest, of allowance for credit loss on investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

+ Details

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X

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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X

- Definition

Amount, excluding accrued interest, of increase in allowance for credit loss on investment in debt security measured at amortized cost (held-to-maturity) from recovery.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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X

- Definition

Amount, excluding accrued interest, of decrease in allowance for credit loss on investment in debt security measured at amortized cost (held-to-maturity) from writeoff.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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X

- Definition

Amount, excluding accrued interest, of credit loss expense (reversal of expense) on investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476148/220-40-50-22

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